correct the comment of min_len() function
correct the comment of min_len() function

Signed-off-by: Urvil Patel <a50bd69aac55e9c9bbba0da82d0a581fa6a1756a@gmail.com>

firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker